/* ============ 主题变量（默认白天） ============ */
* { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --bg: #f5f6f8;
  --panel: #ffffff;
  --panel2: #f0f1f4;
  --line: #e4e6eb;
  --text: #1c1f26;
  --muted: #7a8291;
  --acc: #3563e9;
  --acc2: #2a4fc4;
  --acc-soft: rgba(53, 99, 233, .08);
  --ok: #1a9e54;
  --warn: #d98708;
  --danger: #d64545;
  --shadow: 0 1px 2px rgba(20, 24, 33, .04), 0 4px 16px rgba(20, 24, 33, .05);
  --shadow-hover: 0 2px 4px rgba(20, 24, 33, .06), 0 10px 28px rgba(20, 24, 33, .1);
  color-scheme: light;
}
[data-theme="dark"] {
  --bg: #10131a;
  --panel: #171c26;
  --panel2: #1f2634;
  --line: #2a3242;
  --text: #e6e9f0;
  --muted: #8b95a8;
  --acc: #5b8cff;
  --acc2: #4170e0;
  --acc-soft: rgba(91, 140, 255, .12);
  --ok: #2ecc71;
  --warn: #f39c12;
  --danger: #e74c3c;
  --shadow: 0 1px 2px rgba(0, 0, 0, .2), 0 4px 16px rgba(0, 0, 0, .22);
  --shadow-hover: 0 2px 4px rgba(0, 0, 0, .24), 0 10px 28px rgba(0, 0, 0, .34);
  color-scheme: dark;
}

/* ============ 基础 ============ */
body {
  background: var(--bg); color: var(--text);
  font: 15px/1.7 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  transition: background-color .25s, color .25s;
}
a { color: var(--acc); text-decoration: none; }
a:hover { text-decoration: underline; }
.container { max-width: 1080px; margin: 0 auto; padding: 0 20px; }
main.container { min-height: calc(100vh - 148px); padding-top: 32px; padding-bottom: 56px; }
.mono { font-family: ui-monospace, Consolas, monospace; }

/* ============ 顶部导航 ============ */
.topbar {
  background: var(--panel); border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 10;
  transition: background-color .25s, border-color .25s;
}
.topbar-in { display: flex; align-items: center; gap: 24px; height: 60px; }
.logo { font-size: 17px; font-weight: 700; color: var(--text); white-space: nowrap; letter-spacing: .2px; }
.logo:hover { text-decoration: none; opacity: .85; }
.nav { display: flex; gap: 2px; flex: 1; }
.nav a { padding: 6px 14px; border-radius: 8px; color: var(--muted); font-size: 14px; }
.nav a:hover { color: var(--text); background: var(--panel2); text-decoration: none; }
.nav a.on { color: var(--acc); background: var(--acc-soft); font-weight: 600; }
.nav-right { display: flex; align-items: center; gap: 12px; }
.points { color: var(--muted); font-size: 13px; }
.points b { color: var(--warn); }
.theme-btn {
  background: none; border: 1px solid var(--line); border-radius: 8px;
  width: 34px; height: 34px; cursor: pointer; font-size: 15px; line-height: 1;
  display: flex; align-items: center; justify-content: center; color: var(--muted);
}
.theme-btn:hover { color: var(--text); border-color: var(--acc); }

/* ============ 按钮 ============ */
.btn {
  display: inline-block; padding: 8px 18px; border: 1px solid var(--line); border-radius: 8px;
  background: var(--panel); color: var(--text); cursor: pointer; font-size: 14px;
  transition: border-color .15s, background-color .15s, color .15s;
}
.btn:hover { border-color: var(--acc); color: var(--acc); text-decoration: none; }
.btn-primary { background: var(--acc); border-color: var(--acc); color: #fff; }
.btn-primary:hover { background: var(--acc2); color: #fff; }
.btn-danger { background: transparent; border-color: var(--danger); color: var(--danger); }
.btn-danger:hover { background: var(--danger); color: #fff; }
.btn-sm { padding: 4px 12px; font-size: 13px; }
.btn-block { width: 100%; margin-top: 8px; }
.link-btn { background: none; border: none; color: var(--muted); cursor: pointer; font-size: 14px; }
.link-btn:hover { color: var(--danger); }
.inline { display: inline-block; }

/* ============ 标题与页头 ============ */
h1 { font-size: 21px; font-weight: 700; margin-bottom: 16px; letter-spacing: .2px; }
.page-title { margin-bottom: 20px; }
.page-head { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; margin-bottom: 24px; }
.page-head h1 { margin: 0; }
.search { display: flex; gap: 8px; }
.search input { width: 250px; }

/* ============ 表单 ============ */
input[type=text], input[type=password], input[type=number], input[type=file], textarea, select {
  width: 100%; padding: 9px 12px; border: 1px solid var(--line); border-radius: 8px;
  background: var(--panel); color: var(--text); font-size: 14px;
  transition: border-color .15s, background-color .25s;
}
input:focus, textarea:focus, select:focus { outline: none; border-color: var(--acc); box-shadow: 0 0 0 3px var(--acc-soft); }
label { display: block; margin-bottom: 16px; color: var(--muted); font-size: 13px; }
label input, label textarea, label select { margin-top: 6px; }

/* ============ 卡片网格 ============ */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(236px, 1fr)); gap: 20px; }
.card {
  background: var(--panel); border: 1px solid var(--line); border-radius: 12px;
  overflow: hidden; color: var(--text); box-shadow: var(--shadow);
  transition: transform .18s, box-shadow .18s, border-color .18s;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); border-color: transparent; text-decoration: none; }
.cover { position: relative; height: 150px; background: linear-gradient(135deg, var(--panel2), var(--acc-soft)); display: flex; align-items: center; justify-content: center; }
.cover img { width: 100%; height: 100%; object-fit: cover; }
.cover-icon { font-size: 44px; color: var(--acc); opacity: .5; }
.badge { position: absolute; top: 10px; left: 10px; background: var(--warn); color: #fff; font-size: 12px; padding: 1px 9px; border-radius: 20px; }
.card-body { padding: 14px 16px; }
.card-title { font-weight: 600; margin-bottom: 6px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.meta { color: var(--muted); font-size: 13px; }

/* ============ 分类筛选栏 ============ */
.cat-bar { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 22px; }
.cat-bar a { padding: 5px 14px; border: 1px solid var(--line); border-radius: 20px; background: var(--panel); color: var(--muted); font-size: 14px; }
.cat-bar a:hover { border-color: var(--acc); color: var(--acc); text-decoration: none; }
.cat-bar a.on { background: var(--acc); border-color: var(--acc); color: #fff; }

/* ============ 分页 ============ */
.pager { margin-top: 32px; display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
.pager a { padding: 6px 13px; border: 1px solid var(--line); border-radius: 8px; color: var(--muted); background: var(--panel); }
.pager a:hover { border-color: var(--acc); color: var(--acc); text-decoration: none; }
.pager a.on { background: var(--acc); border-color: var(--acc); color: #fff; }

/* ============ 详情页 ============ */
.detail { max-width: 780px; margin: 0 auto; }
.detail-title { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.detail .badge { position: static; }
.detail > .meta { margin-bottom: 4px; }
.player {
  margin: 22px 0; background: var(--panel); border: 1px solid var(--line);
  border-radius: 12px; padding: 20px; box-shadow: var(--shadow);
}
.player audio { width: 100%; }
.section { margin: 26px 0; }
.section h2 {
  font-size: 15px; font-weight: 600; margin-bottom: 12px; color: var(--text);
  padding-left: 10px; border-left: 3px solid var(--acc);
}
.desc { white-space: pre-wrap; background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 16px 18px; }
.gallery { display: grid; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: 12px; }
.gallery .zoom { cursor: zoom-in; display: block; }
.gallery img { width: 100%; height: 130px; object-fit: cover; border-radius: 8px; border: 1px solid var(--line); transition: border-color .15s, transform .15s; }
.gallery img:hover { border-color: var(--acc); transform: scale(1.02); }

/* ============ 灯箱 ============ */
.lightbox { position: fixed; inset: 0; z-index: 100; background: rgba(8, 10, 14, .92); display: flex; align-items: center; justify-content: center; }
.lightbox[hidden] { display: none; }
.lightbox img { max-width: 92vw; max-height: 90vh; border-radius: 8px; box-shadow: 0 12px 48px rgba(0, 0, 0, .6); cursor: zoom-out; }
.lb-btn { position: absolute; background: rgba(255, 255, 255, .08); border: 1px solid rgba(255, 255, 255, .15); color: #fff; cursor: pointer; border-radius: 50%; width: 44px; height: 44px; font-size: 24px; line-height: 1; display: flex; align-items: center; justify-content: center; }
.lb-btn:hover { background: rgba(255, 255, 255, .2); }
.lb-prev { left: 18px; top: 50%; transform: translateY(-50%); }
.lb-next { right: 18px; top: 50%; transform: translateY(-50%); }
.lb-close { top: 16px; right: 18px; }
.lb-count { position: absolute; bottom: 18px; left: 50%; transform: translateX(-50%); color: #cfd6e4; font-size: 14px; background: rgba(0, 0, 0, .4); padding: 3px 12px; border-radius: 12px; }

/* ============ 表单盒子 / 提示 ============ */
.auth-box, .form-box {
  max-width: 420px; margin: 40px auto; background: var(--panel);
  border: 1px solid var(--line); border-radius: 14px; padding: 32px; box-shadow: var(--shadow);
}
.form-box { max-width: 640px; }
.auth-box h1, .form-box h1 { text-align: center; }
.tip { color: var(--muted); font-size: 13px; margin-top: 14px; text-align: center; }
.alert { background: rgba(214, 69, 69, .08); border: 1px solid var(--danger); color: var(--danger); padding: 10px 14px; border-radius: 8px; margin-bottom: 16px; font-size: 14px; }
.empty { text-align: center; color: var(--muted); padding: 64px 0; }
.notice { background: rgba(217, 135, 8, .08); border: 1px solid var(--warn); color: var(--warn); padding: 10px 14px; border-radius: 8px; margin-bottom: 16px; font-size: 14px; }

/* ============ 面板（个人中心/后台） ============ */
.panel { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 22px; margin-bottom: 20px; box-shadow: var(--shadow); }
.panel-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 16px; }
.panel-head h2 { font-size: 16px; font-weight: 600; }
.big-points { font-size: 32px; font-weight: 700; color: var(--warn); }
.row-form { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.row-form input { width: auto; flex: 1; min-width: 120px; margin: 0; }

/* ============ 表格 ============ */
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: middle; }
th { color: var(--muted); font-weight: 500; font-size: 13px; }
tr:last-child td { border-bottom: none; }
.ops { display: flex; gap: 6px; flex-wrap: wrap; }
.ops input { width: auto; }
.up { color: var(--ok); } .down { color: var(--danger); }
.tag { padding: 2px 10px; border-radius: 20px; font-size: 12px; background: var(--panel2); color: var(--muted); }
.tag-ok { color: var(--ok); } .tag-wait { color: var(--warn); } .tag-danger { color: var(--danger); }

/* ============ 后台 ============ */
.admin-nav { display: flex; gap: 8px; margin-bottom: 24px; flex-wrap: wrap; }
.admin-nav a { padding: 7px 16px; background: var(--panel); border: 1px solid var(--line); border-radius: 8px; color: var(--muted); font-size: 14px; }
.admin-nav a:hover { border-color: var(--acc); color: var(--acc); text-decoration: none; }
.admin-nav a.on { color: #fff; background: var(--acc); border-color: var(--acc); }
.stats { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 16px; }
.stat { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 20px; text-align: center; color: var(--muted); box-shadow: var(--shadow); }
.stat-num { font-size: 28px; font-weight: 700; color: var(--text); margin-bottom: 2px; }
.admin-table td.ops form { margin-bottom: 4px; }
.review-media { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 14px; padding-bottom: 14px; border-bottom: 1px dashed var(--line); }
.review-media audio { flex: 1; min-width: 240px; height: 34px; }

/* ============ 充值 / 购买 ============ */
.recharge-info { background: var(--panel2); border-radius: 10px; padding: 16px; margin-bottom: 18px; }
.buy-box { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 16px 18px; box-shadow: var(--shadow); }
.buy-box .price { color: var(--warn); font-size: 20px; }
.pay-types { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 6px; }
.pay-type { display: flex; align-items: center; gap: 8px; border: 1px solid var(--line); border-radius: 8px; padding: 10px 18px; margin: 0; cursor: pointer; color: var(--text); background: var(--panel); transition: border-color .15s; }
.pay-type:hover { border-color: var(--acc); }
.pay-type input { width: auto; margin: 0; }

/* ============ 页脚 ============ */
.footer { border-top: 1px solid var(--line); padding: 22px 0; color: var(--muted); font-size: 13px; text-align: center; }

/* ============ 响应式 ============ */
@media (max-width: 640px) {
  .topbar-in { flex-wrap: wrap; height: auto; padding: 10px 0; gap: 10px; }
  .nav { order: 3; width: 100%; }
  .page-head { flex-direction: column; align-items: stretch; }
  .search input { flex: 1; width: auto; }
  main.container { padding-top: 24px; }
  /* 移动端音频列表：一行两列 */
  .grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .cover { height: 108px; }
  .cover-icon { font-size: 32px; }
  .card-body { padding: 10px 12px; }
  .card-title { font-size: 14px; }
  .meta { font-size: 12px; line-height: 1.5; }
}